Substitution chemistry of MM quadruply bonded complexes (M = Mo or W) supported by the anion of 2-hydroxy-6-methylpyridine
作者:Douglas J. Brown、Malcolm H. Chisholm、Christopher W. Gribble
DOI:10.1039/b618957a
日期:——
035(2) A, Mo-N(mhp) = 2.161(2) A, and Mo-N(CH(3)CN) = 2.160(3) and 2.170(3) A. Reactions involving Mo(2)(mhp)(3)(CH(3)CN)(2)(2+) and Mo(2)(mhp)(2)(CH(3)CN)(4)(2+) with (n)Bu(4)NO(2)CMe (1 and 2 equiv.) yield the complexes Mo(2)(mhp)(3)(O(2)CMe) and Mo(2)(mhp)(2)(O(2)CMe)(2) which are shown to be kinetically labile to ligand scrambling. Reactions between Mo(2)(mhp)(3)(CH(3)CN)(2)(+)BF(4)(-) (2 equiv
Reactivity of quadruply bonded dimolybdenum(II) complexes with alkyl isocyanides: Mo-Mo bond cleavage or retention?
作者:W.S. Harwood、Ju-Sheng Qi、R.A. Walton
DOI:10.1016/s0277-5387(00)84879-2
日期:1986.1
quadruply-bonded dimolybdenum(II) complexes Mo2(μ-dppm)2X4 (X = Br or I) can be prepared in highyield from Mo2(μ-dppm)2Cl4 (dppm = Ph2PCH2PPh2) via simple halide-exchange reactions (using NaX in acetone). The complexes Mo2(μ-dppm)2X4 (X = Cl, Br or I) react with one equivalent of RNC (R = i-Pr or t-Bu) in the presence of TlPF6 (in THF) or KPF6 (in acetone) to give [Mo2X3(dppm)2(CNR)]PF6, the first examples